Bump castore from 1.0.7 to 1.0.8 #319

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Run time

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Job	Run time
test (1.17.x, 27.x, true, elasticsearch-7.6.0)	1m 12s
test (1.17.x, 27.x, true, elasticsearch-7.6.0)	5m 42s
test (1.17.x, 27.x, elasticsearch-8.2.0)	1m 20s
test (1.17.x, 27.x, elasticsearch-8.2.0)	5m 40s
test (1.17.x, 27.x, opensearch-2.6.0)	1m 4s
test (1.17.x, 27.x, opensearch-2.6.0)	3m 31s
test (1.17.x, 27.x, opensearch-2.13.0)	1m 6s
test (1.17.x, 27.x, opensearch-2.13.0)	3m 32s
test (1.16.x, 26.x, elasticsearch-7.6.0)	1m 22s
test (1.16.x, 26.x, elasticsearch-7.6.0)	7m 31s
test (1.15.x, 26.x, elasticsearch-7.6.0)	1m 22s
test (1.15.x, 26.x, elasticsearch-7.6.0)	7m 35s
test (1.14.x, 25.x, elasticsearch-7.6.0)	1m 20s
test (1.14.x, 25.x, elasticsearch-7.6.0)	7m 23s
test (1.13.x, 24.x, elasticsearch-7.6.0)	1m 7s
test (1.13.x, 24.x, elasticsearch-7.6.0)	5m 56s
test (1.12.x, 24.x, elasticsearch-7.6.0)	1m 21s
test (1.12.x, 24.x, elasticsearch-7.6.0)	6m 14s
	1h 4m 18s